All that is already tracked, not sure that Google+ really adds much to it.

Although I don't trust either of them and I have a distinct distaste for Facebook, mostly because of all the apps that are 10x worse at info trolling, I really don't care if they track any of those things on me. I used to be very concerned, ran proxomitron forever and still have Ghostery going but all said, they can have my data...I am not using it.

I'm still waiting for targeted advertising that comes even close to what I buy. I'm not single, I could care less about how white my teeth are, or how much belly fat I have. I'm not into Justin Bieber or Katy Perry, either.